Love to get on lake shortly with pole to catch a fish (7)

I believe the answer is:

oolakan

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'fish' is the definition.
(I have seen 'oily fish' mean 'oolakan' so perhaps 'fish' could also mean 'oolakan')

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Another definition for oolakan that I've seen is " oily fish".)

I've seen this clue in The Times and The Sunday Times.

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